Alphonse Borrelly

He joined the Marseille Observatory in 1864. In the course of his career, he discovered a number of asteroids and comets, including the periodic comet 19P/Borrelly. He also discovered five NGC objects, all galaxies.

The French Academy of Sciences awarded him the Prix Valz for 1903 and the Prix Lalande for 1909. The asteroid 1539 Borrelly was named in his honor.

In 1913, he received the Prix Jules Janssen, the highest award of the Société astronomique de France, the French astronomical society.

Discoveries

Comets discovered or co-discovered

The following is an incomplete list of comets discovered or co-discovered by Borrelly:

• C/1873 Q1 (Borrelly)
• C/1877 C1 (Borrelly)
• C/1877 G2 (Swift-Borrelly-Block)
• C/1889 X1 (Borrelly)
• C/1900 O1 (Borrelly–Brooks)
• 19P/Borrelly
• C/1909 L1 (Borrelly–Daniel)

NGC objects discovered (all in 1871)

• NGC 2268
• NGC 2300
• NGC 2715
• NGC 3933
• NGC 3934